El hipopótamo

This book introduces you to giraffes, including their size, diet and everyday behavior, which highlights differences between those in the wild and those living in a zoo habitat.

Can you find these in the book? robin, tulip. What is your favorite season? Books in the Seasons series explore seasonal changes from a child's point of view. Fin out about the sights, sounds, tastes, and smells that each season brings.

Get a close-up look at animals in the zoo, from appearance to behavior to babies. This series uses vivid photos to compare life in the wild and life in captivity in terms of habitat, activity, and diet.

The use of calendars dates back thousands of years. Why are we driven to record time, and what would happen if we did not? Who created the concept of calendars? Why do different cultures use different calendar systems? And why are calendars so important to us? It is about "time" we found out! Created in collaboration with the Smithsonian Institution, this Spanish-translated Smithsonian Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge...

In 1846, travelers heading for California became trapped high in the mountains of the Sierra Nevada. Snowdrifts surrounded their shelters, and food supplies dwindled. How they stayed alive remains one of the most gruesome stories in US history. However, some facts that have come to light recently through archaeological digs will surprise even those who think they know the story. This gripping book, including maps and images of the era, tells the true account of the doomed Donner party.

Simple text and photographs introduce the purpose of money, how old coins and paper money are disposed of, and how new money is made.

Many consider Abraham Lincoln to be the greatest US president This book explores Lincoln’s early life, self-taught education, law career, and influential presidency. Through simple language translated into Latin-American Spanish, beginning readers will learn about the Civil War and Lincoln’s inspiring leadership. Historical images and a helpful timeline will enhance English language learners’ introduction to Lincoln’s extraordinary achievements and connect them to an important era in American history.